Commit Graph

12 Commits

Author SHA1 Message Date
nmlgc 6058395372 [Maintenance] Change the inline assembly keyword to `_asm`
The single underscore version is actually slightly more supported among
the compilers I've seen so far. Also added the exact list now.

Part of P0183, funded by Yanga and [Anonymous].
2022-02-18 09:36:34 +01:00
nmlgc 9739f69729 [Maintenance] Add a 1bpp rectangle template, for custom per-row types
This gets rid of a couple of per-entity sprite bitplane types, makes
sprite declarations easier to read by putting width and height next to
each other… and points out a number of array dimension mistakes -.-
Even in places where we can't use it.

Part of P0138, funded by [Anonymous] and Blue Bolt.
2021-04-21 18:01:57 +02:00
nmlgc e1d5bdafed [Maintenance] master.hpp: Type-safe hmem_allocbyte() and hmem_free() wrappers
Sure, we can't use them everywhere, but it's really nice to get rid of
that casting madness – and any explicit references to x86 memory
segmentation – wherever we can.

Part of P0138, funded by [Anonymous] and Blue Bolt.
2021-04-21 17:50:12 +02:00
nmlgc 1244bd74e7 [Maintenance] Prefer the -zC and -zP options over `#pragma codeseg`
Might look uglier, but has the advantage of not generating an empty
segment with the default name… *and* the default padding, which will
really come in handy with the following breakthrough.

Part of P0137, funded by [Anonymous].
2021-04-03 20:12:09 +02:00
nmlgc 29abdd5b6a [Maintenance] Make decomp.h exclusive to C++
eeb4e7e changed the final C translation unit that used this header to
C++, and we got some more helpful inline functions upcoming.

Part of P0136, funded by [Anonymous].
2021-03-20 02:17:08 +01:00
nmlgc 1c5ed4b06e [Maintenance] Copy <dos.h>'s 16-bit x86 Real Mode declarations to a new file
DOS is not the same thing as the underlying CPU, after all. A separate
file not only indicates to future port authors which parts of the code
are x86-specific, but it also speeds up build times…

… in theory, because removing 677 lines from 49 files each doesn't seem
to speed up the build as much as I had hoped? But apparently my whole
system mysteriously got faster in the meantime, and I was getting 22-23
seconds for the entire repo even before this commit. Good enough.

Part of P0134, funded by [Anonymous].
2021-02-20 23:49:45 +01:00
nmlgc f7931167fc [Decompilation] [th03] .MRS: Slot loading function
Still too micro-optimized to be decompilable into something sane…
Anyway, .MRS done.

Part of P0127, funded by [Anonymous].
2020-11-16 20:01:34 +01:00
nmlgc 1fe9863e47 [Decompilation] [th03] .MRS: Slot freeing function
How can you mess up *a freeing function* that badly?! In your third
game?!

Part of P0127, funded by [Anonymous].
2020-11-16 20:01:33 +01:00
nmlgc 00e65f4c6b [Decompilation] [th03] .MRS: Alpha-tested byte-aligned blitting
And since inlining even removes longer if-else chains if they branch
depending on a literal constant, we can use a regular parameter to
select either MOV or OR in our _FS and _GS poke() template functions,
without needing to duplicate them!

Part of P0127, funded by [Anonymous].
2020-11-16 20:01:32 +01:00
nmlgc 8b0165738a [Decompilation] [th03] .MRS: Byte-aligned, opaque blitting
Containing not one, but two decompilation innovations, one of which
works around a compiler bug using C++ template functions…

Completes P0126, funded by [Anonymous] and Blue Bolt.
2020-11-16 20:01:32 +01:00
nmlgc 5965930bd0 [Decompilation] [th03] .MRS: Persistent horizontal flipping
Another function consisting almost entirely of inline ASM. Still worth
it though, if only to save us from duplicating any declarations in ASM
land.

Part of P0126, funded by [Anonymous] and Blue Bolt.
2020-11-16 20:01:31 +01:00
nmlgc 08a09aabb2 [Reverse-engineering] [th03] .MRS: Bitplane pointers
Part of P0126, funded by [Anonymous] and Blue Bolt.
2020-11-16 20:01:26 +01:00